US20210023943A1 - Auxilliary power take-off assembly - Google Patents
Auxilliary power take-off assembly Download PDFInfo
- Publication number
- US20210023943A1 US20210023943A1 US17/042,491 US201917042491A US2021023943A1 US 20210023943 A1 US20210023943 A1 US 20210023943A1 US 201917042491 A US201917042491 A US 201917042491A US 2021023943 A1 US2021023943 A1 US 2021023943A1
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- United States
- Prior art keywords
- transmission
- drive output
- output shaft
- drive
- power take
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- 230000005540 biological transmission Effects 0.000 claims abstract description 99
- 238000000465 moulding Methods 0.000 claims description 18
- 230000001419 dependent effect Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/361—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02026—Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
Definitions
- the present invention relates to an auxiliary power take-off assembly and a transmission having an auxiliary power take-off assembly, and to a bearing cap for mounting a drive output shaft of the auxiliary power take-off assembly.
- Vehicle transmissions in utility vehicles often comprise an auxiliary power take-off assembly by means of which various types of auxiliary aggregates in the vehicle can be driven. This applies in equal measure to transmissions with a friction disk clutch and a vehicle transmission equipped with a torque converter.
- Auxiliary power take-off assemblies are used in particular in buses, trucks, construction machinery, agricultural vehicles or special vehicles.
- Auxiliary power take-off assemblies are available in drive-dependent, clutch-dependent or motor-dependent versions.
- Drive-dependent auxiliary power take-off assemblies for example, supply the hydraulic system of dual-circuit steering systems with a working pressure, whereby rolling vehicles can still be steered if the primary system has failed due to a motor breakdown.
- Clutch-dependent auxiliary power take-offs are suitable for short- or long-term operation during driving or at rest.
- Motor-dependent auxiliary power take-offs differ from clutch-dependent auxiliary power take-offs in that in motor-dependent auxiliary power take-offs there is a direct connection to the crankshaft of the drive motor, which bypasses the vehicle clutch or torque converter, so that such auxiliary power take-offs are mechanically permanently connected with the crankshaft of the drive motor. They are designed for high constant power in long-term operation and can be loaded with the maximum motor torque. They can be operated while the vehicle is driving or at rest, and can be engaged or disengaged under load. Motor-dependent auxiliary power take-offs are arranged between the motor and the transmission, they are driven always directly by the motor by way of a separate clutch, and can also be engaged and disengaged under load while the vehicle is driving or at rest.
- an auxiliary power take-off assembly for a motor vehicle transmission with a torque converter which has a driveshaft permanently connected to a drive motor of the motor vehicle by way of the pump shaft of the torque converter. Furthermore, the auxiliary power take-off assembly comprises a transmission chain with a drive input element, an intermediate gear and a drive output element, whose drive output element is connected to an auxiliary aggregate that is to be driven, and a shifting element.
- the shifting element is arranged for the optional connection of the driveshaft to a drive input element, and acts between the driveshaft and the drive input element of the transmission chain.
- auxiliary power take-off assembly can already be decoupled, behind the driveshaft connected to the pump shaft of the torque converter, completely from the rest of the transmission chain and the auxiliary aggregate, so that when not needed these elements do not have to co-rotate and do not therefore produce any losses and noise.
- the purpose of the present invention is to simplify the structure known from the prior art and to minimize the installation effort.
- the auxiliary power take-off assembly in a transmission of a motor vehicle, having a torque converter, with a transmission input and a transmission output, with a driveshaft permanently connected to a drive motor of the motor vehicle via the pump shaft of the torque converter at the transmission input, a transmission output shaft at the transmission output and a transmission chain consisting at least of a drive input element and a drive output element, whose drive output element can be connected to an auxiliary aggregate which is to be driven, has a shifting element arranged to act between the driveshaft and the drive input element of the transmission chain for the optional connection of the driveshaft to the drive output element, and is characterized in that the drive output element is arranged on a drive output shaft which is mounted in a bearing cap.
- the drive input element and the drive output element are preferably in the form of gearwheels, and the drive input gear and the drive output gear are preferably fitted in the transmission chain without an additional intermediate gear, so that the teeth of the drive input gear and the drive output gear engage directly in one another.
- the transmission chain consists only of the drive input element and the drive output element, or drive input wheel and drive output wheel.
- the automatic transmission is a transmission with an interface for the fitting of end consumers, which means that no longer is an additional auxiliary power take-off required, but rather, the transmission provides the necessary interfaces for the end consumers.
- the transmission input is on the driven side of the transmission, where the drive motor introduces a torque into the transmission via an input shaft.
- the transmission output is on the output side, i.e. on that side of the transmission where a transmission output shaft transmits torque to a drive output shaft or a differential by way of which the wheels of the vehicle are driven.
- the drive output shaft is connected by way of an intermediate shaft to the auxiliary aggregate, so that the auxiliary aggregate can be arranged on the transmission output side.
- the intermediate shaft is fitted in the drive output shaft.
- the bearing cap closes an opening in the transmission housing, and the bearing cap has bores in which the drive output shaft is mounted.
- the bearing cap has two bores.
- Each bore of the bearing cap is formed in a molding or projection of the bearing cap, and each has a bearing, such as a conical roller bearing, for receiving and mounting the drive output shaft.
- the drive output shaft is preferably mounted so as to extend with its axis parallel to the transmission output shaft.
- the drive input element, the drive output element, the shifting element and the drive output shaft are arranged inside the transmission housing and the auxiliary power take-off assembly is therefore part of the transmission, so that no additional PTO is needed for driving auxiliary aggregates.
- the auxiliary power take-off assembly with the features indicated earlier is fitted in a transmission, which can be made available as a complete component.
- the intermediate shaft is at least partially surrounded by a protective tube.
- the protective tube is fitted in the transmission on the transmission input side and the transmission output side.
- the bearing cap has bores for receiving the drive output shaft.
- the bearing cap has two bores.
- the bearing cap must be able to be connected to the transmission housing and fixed. This preferably happens by means of fixing bores through which the bearing cap and the transmission housing can be bolted to one another.
- the bearing cap also has a molding which is made hollow in the direction of the inside of the transmission. In this hollow molding is the drive output element, in the form of a drive output wheel that is mounted and free to rotate on the drive output shaft.
- the bores for receiving the drive output shaft are arrange in moldings of the bearing cap, which project oppositely to the hollow molding for the drive output wheel in the direction of the inside space of the transmission and are preferably formed as two moldings opposite one another.
- the bores for receiving the drive output shaft are made at a right-angle to the fixing bores.
- the bores for receiving the drive output shaft comprise, for example, a conical roller bearing for mounting the drive output shaft.
- the drive output shaft is mounted in the bores in such manner that it extends with its axis parallel to the transmission output shaft. That means that in this case the bores are also arranged with their axes parallel to the output shaft of the transmission.
- FIG. 1 A cross sectional view of a transmission with an auxiliary power take-off assembly according to the invention
- FIG. 2 An auxiliary power take-off assembly, including the intermediate shaft
- FIGS. 3, 3A Two views of the bearing cap
- FIG. 1 shows a section of an automatic transmission 2 according to the invention with an auxiliary power take-off assembly 20 , wherein a torque converter 4 is fitted in such manner that the pump wheel 16 is driven by a drive motor and is connected permanently to the pump shaft 14 .
- a torque converter 4 is fitted in such manner that the pump wheel 16 is driven by a drive motor and is connected permanently to the pump shaft 14 .
- the driveshaft 12 of the auxiliary power take-off assembly 20 Connected to the pump shaft 14 is the driveshaft 12 of the auxiliary power take-off assembly 20 .
- the drive input element 10 of the auxiliary power take-off assembly 20 is mounted to rotate freely.
- the drive input element 10 can be coupled to or decoupled from the driveshaft by means of a shifting element 24 . In the decoupled condition, the components of the auxiliary power take-off assembly 20 and of any auxiliary aggregate connected thereto, if present, are no longer driven.
- the drive input element 10 transmits torque directly to a drive output element 8 , which is mounted on a drive output shaft 6 .
- the drive output shaft 6 is mounted in the bearing cap 30 , which has two moldings 34 or projections in which bores 32 for fitting the drive output shaft 6 are provided.
- various types of bearings can be provided, for example conical roller bearings, which hold the drive output shaft 6 .
- the bearing cap 30 closes an opening in the transmission housing 22 , for which purpose it can be bolted to the transmission housing 22 .
- a hollow molding or projection 38 is provided, which surrounds the drive output element 8 .
- FIG. 2 shows an extended section of a transmission 2 according to the invention.
- the pump wheel 16 is connected to the pump shaft 14 , which in turn is connected to the driveshaft 12 .
- On the driveshaft 12 is mounted the drive input wheel 10 , which can be coupled to or decoupled from the driveshaft 12 by means of a shifting element 24 .
- a drive output gear 8 is directly engaged with the drive input gear 10 and is mounted on the drive output shaft 6 .
- the drive output shaft 6 is mounted in the bearing cap 30 .
- an intermediate shaft 18 which passes torque from the drive output shaft to the transmission output 28 where an appropriate auxiliary aggregate or end consumer can be connected and in that way driven.
- the auxiliary aggregates can be connected to the transmission output 28 .
- the intermediate shaft 18 is surrounded by a protective tube 26 and is mounted on the transmission input side or on the side of the drive output shaft 6 in the drive output shaft 6 .
- the intermediate shaft 18 can have a driving profile on the transmission output side. The driving profile can receive a driveshaft or a driving flange of an auxiliary aggregate, and drive the latter.
- This can be, for example, a driveshaft of a hydraulic pump or a drive output flange.
- the driving profile of the intermediate shaft can also be designed to receive a driveshaft of a step-up stage.
- the protective tube 26 of the intermediate shaft 18 is filled in the transmission 2 on the transmission input side or the transmission output side 28 .
- the auxiliary power take-off assembly 20 is part of the transmission 2 , since the drive input wheel 10 , the drive output gear 8 , the shifting element 24 and the drive output shaft 6 are arranged inside the transmission housing 22 , so that no additional PTO is needed for driving auxiliary aggregates.
- FIGS. 3 ad 3 A show the bearing cap 30 .
- This is a one-piece component with fixing bores 36 for fixing it to the transmission housing 22 and thereby closing an opening in the transmission housing 22 .
- the fixing bores 36 can be provided in various numbers and arrangements.
- the bearing cap 30 also has two moldings 34 extending in the direction toward the inside of the transmission, each of which moldings has a bore 32 .
- the bores 32 serve as bearing bores in which the drive output shaft 6 is fitted.
- various types of bearing can be provided in the bores 32 , for example conical roller bearings.
- a hollow molding 38 is provided, which surrounds the drive output wheel 8 .
Abstract
Description
- This is a National Stage completion of PCT/EP2019/054777 filed Feb. 27, 2019, which claims priority from German patent application serial no. 10 2018 204 910.6 filed Mar. 29, 2018.
- The present invention relates to an auxiliary power take-off assembly and a transmission having an auxiliary power take-off assembly, and to a bearing cap for mounting a drive output shaft of the auxiliary power take-off assembly.
- Vehicle transmissions in utility vehicles often comprise an auxiliary power take-off assembly by means of which various types of auxiliary aggregates in the vehicle can be driven. This applies in equal measure to transmissions with a friction disk clutch and a vehicle transmission equipped with a torque converter.
- Auxiliary power take-off assemblies are used in particular in buses, trucks, construction machinery, agricultural vehicles or special vehicles.
- Auxiliary power take-off assemblies are available in drive-dependent, clutch-dependent or motor-dependent versions. Drive-dependent auxiliary power take-off assemblies, for example, supply the hydraulic system of dual-circuit steering systems with a working pressure, whereby rolling vehicles can still be steered if the primary system has failed due to a motor breakdown. Clutch-dependent auxiliary power take-offs are suitable for short- or long-term operation during driving or at rest. Motor-dependent auxiliary power take-offs differ from clutch-dependent auxiliary power take-offs in that in motor-dependent auxiliary power take-offs there is a direct connection to the crankshaft of the drive motor, which bypasses the vehicle clutch or torque converter, so that such auxiliary power take-offs are mechanically permanently connected with the crankshaft of the drive motor. They are designed for high constant power in long-term operation and can be loaded with the maximum motor torque. They can be operated while the vehicle is driving or at rest, and can be engaged or disengaged under load. Motor-dependent auxiliary power take-offs are arranged between the motor and the transmission, they are driven always directly by the motor by way of a separate clutch, and can also be engaged and disengaged under load while the vehicle is driving or at rest.
- From DE 10 2016 21 22 09 A1 an auxiliary power take-off assembly for a motor vehicle transmission with a torque converter is known, which has a driveshaft permanently connected to a drive motor of the motor vehicle by way of the pump shaft of the torque converter. Furthermore, the auxiliary power take-off assembly comprises a transmission chain with a drive input element, an intermediate gear and a drive output element, whose drive output element is connected to an auxiliary aggregate that is to be driven, and a shifting element. The shifting element is arranged for the optional connection of the driveshaft to a drive input element, and acts between the driveshaft and the drive input element of the transmission chain. In that way the auxiliary power take-off assembly can already be decoupled, behind the driveshaft connected to the pump shaft of the torque converter, completely from the rest of the transmission chain and the auxiliary aggregate, so that when not needed these elements do not have to co-rotate and do not therefore produce any losses and noise.
- The purpose of the present invention is to simplify the structure known from the prior art and to minimize the installation effort.
- This objective is achieved by an auxiliary power take-off assembly, a transmission and a bearing cap having the characteristics specified in the independent claims. Design features are the subject of the subordinate claims.
- The auxiliary power take-off assembly, in a transmission of a motor vehicle, having a torque converter, with a transmission input and a transmission output, with a driveshaft permanently connected to a drive motor of the motor vehicle via the pump shaft of the torque converter at the transmission input, a transmission output shaft at the transmission output and a transmission chain consisting at least of a drive input element and a drive output element, whose drive output element can be connected to an auxiliary aggregate which is to be driven, has a shifting element arranged to act between the driveshaft and the drive input element of the transmission chain for the optional connection of the driveshaft to the drive output element, and is characterized in that the drive output element is arranged on a drive output shaft which is mounted in a bearing cap. The drive input element and the drive output element are preferably in the form of gearwheels, and the drive input gear and the drive output gear are preferably fitted in the transmission chain without an additional intermediate gear, so that the teeth of the drive input gear and the drive output gear engage directly in one another. The transmission chain consists only of the drive input element and the drive output element, or drive input wheel and drive output wheel.
- The shifting elements, bearings, shafts and wheels, as well as the actuator system, control system and actuators are completely integrated in the transmission housing. In the fitted condition the bearing cap forms part of the transmission housing and for that it is connected thereto. Thus, the automatic transmission is a transmission with an interface for the fitting of end consumers, which means that no longer is an additional auxiliary power take-off required, but rather, the transmission provides the necessary interfaces for the end consumers.
- The transmission input is on the driven side of the transmission, where the drive motor introduces a torque into the transmission via an input shaft. The transmission output is on the output side, i.e. on that side of the transmission where a transmission output shaft transmits torque to a drive output shaft or a differential by way of which the wheels of the vehicle are driven.
- The drive output shaft is connected by way of an intermediate shaft to the auxiliary aggregate, so that the auxiliary aggregate can be arranged on the transmission output side. The intermediate shaft is fitted in the drive output shaft.
- The bearing cap closes an opening in the transmission housing, and the bearing cap has bores in which the drive output shaft is mounted. Preferably, the bearing cap has two bores. Each bore of the bearing cap is formed in a molding or projection of the bearing cap, and each has a bearing, such as a conical roller bearing, for receiving and mounting the drive output shaft. The drive output shaft is preferably mounted so as to extend with its axis parallel to the transmission output shaft.
- As described, the drive input element, the drive output element, the shifting element and the drive output shaft are arranged inside the transmission housing and the auxiliary power take-off assembly is therefore part of the transmission, so that no additional PTO is needed for driving auxiliary aggregates. For this purpose, the auxiliary power take-off assembly with the features indicated earlier is fitted in a transmission, which can be made available as a complete component.
- The intermediate shaft is at least partially surrounded by a protective tube. The protective tube is fitted in the transmission on the transmission input side and the transmission output side.
- The bearing cap has bores for receiving the drive output shaft. Preferably, the bearing cap has two bores. In addition the bearing cap must be able to be connected to the transmission housing and fixed. This preferably happens by means of fixing bores through which the bearing cap and the transmission housing can be bolted to one another. The bearing cap also has a molding which is made hollow in the direction of the inside of the transmission. In this hollow molding is the drive output element, in the form of a drive output wheel that is mounted and free to rotate on the drive output shaft.
- The bores for receiving the drive output shaft are arrange in moldings of the bearing cap, which project oppositely to the hollow molding for the drive output wheel in the direction of the inside space of the transmission and are preferably formed as two moldings opposite one another. The bores for receiving the drive output shaft are made at a right-angle to the fixing bores. To receive the drive output shaft, the bores for receiving the drive output shaft comprise, for example, a conical roller bearing for mounting the drive output shaft. Preferably, the drive output shaft is mounted in the bores in such manner that it extends with its axis parallel to the transmission output shaft. That means that in this case the bores are also arranged with their axes parallel to the output shaft of the transmission.
- The invention will now be explained in greater detail with reference to figures, which show:
-
FIG. 1 : A cross sectional view of a transmission with an auxiliary power take-off assembly according to the invention -
FIG. 2 : An auxiliary power take-off assembly, including the intermediate shaft -
FIGS. 3, 3A : Two views of the bearing cap -
FIG. 1 shows a section of anautomatic transmission 2 according to the invention with an auxiliary power take-off assembly 20, wherein atorque converter 4 is fitted in such manner that thepump wheel 16 is driven by a drive motor and is connected permanently to thepump shaft 14. Connected to thepump shaft 14 is thedriveshaft 12 of the auxiliary power take-off assembly 20. On thedriveshaft 12 of the auxiliary power take-off assembly 20 thedrive input element 10 of the auxiliary power take-off assembly 20 is mounted to rotate freely. Thedrive input element 10 can be coupled to or decoupled from the driveshaft by means of a shiftingelement 24. In the decoupled condition, the components of the auxiliary power take-off assembly 20 and of any auxiliary aggregate connected thereto, if present, are no longer driven. This reduces noise and power losses during driving operation. In the coupled condition, thedrive input element 10 transmits torque directly to adrive output element 8, which is mounted on adrive output shaft 6. Thedrive output shaft 6 is mounted in thebearing cap 30, which has twomoldings 34 or projections in which bores 32 for fitting thedrive output shaft 6 are provided. In thesebores 32 various types of bearings can be provided, for example conical roller bearings, which hold thedrive output shaft 6. The bearingcap 30 closes an opening in thetransmission housing 22, for which purpose it can be bolted to thetransmission housing 22. In the opposite direction to themoldings 34, a hollow molding orprojection 38 is provided, which surrounds thedrive output element 8. -
FIG. 2 shows an extended section of atransmission 2 according to the invention. Thepump wheel 16 is connected to thepump shaft 14, which in turn is connected to thedriveshaft 12. On thedriveshaft 12 is mounted thedrive input wheel 10, which can be coupled to or decoupled from thedriveshaft 12 by means of a shiftingelement 24. Adrive output gear 8 is directly engaged with thedrive input gear 10 and is mounted on thedrive output shaft 6. As already described, thedrive output shaft 6 is mounted in thebearing cap 30. - In the
drive output shaft 6 is fitted anintermediate shaft 18, which passes torque from the drive output shaft to thetransmission output 28 where an appropriate auxiliary aggregate or end consumer can be connected and in that way driven. By virtue of the guiding to thetransmission output 28, as in the case of classical external auxiliary power take-offs, the auxiliary aggregates can be connected to thetransmission output 28. In this case theintermediate shaft 18 is surrounded by aprotective tube 26 and is mounted on the transmission input side or on the side of thedrive output shaft 6 in thedrive output shaft 6. To drive an auxiliary aggregate, theintermediate shaft 18 can have a driving profile on the transmission output side. The driving profile can receive a driveshaft or a driving flange of an auxiliary aggregate, and drive the latter. This can be, for example, a driveshaft of a hydraulic pump or a drive output flange. The driving profile of the intermediate shaft can also be designed to receive a driveshaft of a step-up stage. Theprotective tube 26 of theintermediate shaft 18 is filled in thetransmission 2 on the transmission input side or thetransmission output side 28. - The auxiliary power take-
off assembly 20 is part of thetransmission 2, since thedrive input wheel 10, thedrive output gear 8, the shiftingelement 24 and thedrive output shaft 6 are arranged inside thetransmission housing 22, so that no additional PTO is needed for driving auxiliary aggregates. -
FIGS. 3 ad 3A show thebearing cap 30. This is a one-piece component with fixingbores 36 for fixing it to thetransmission housing 22 and thereby closing an opening in thetransmission housing 22. The fixing bores 36 can be provided in various numbers and arrangements. The bearingcap 30 also has twomoldings 34 extending in the direction toward the inside of the transmission, each of which moldings has abore 32. Thebores 32 serve as bearing bores in which thedrive output shaft 6 is fitted. In addition various types of bearing can be provided in thebores 32, for example conical roller bearings. Opposite to the moldings 34 ahollow molding 38 is provided, which surrounds thedrive output wheel 8. -
- 2 Transmission
- 4 Torque converter
- 6 Drive output shaft
- 8 Drive output gear
- 10 Drive input gear
- 12 Driveshaft
- 14 Pump shaft
- 16 Pump wheel
- 18 Intermediate shaft
- 20 Auxiliary power take-off assembly
- 22 Transmission housing
- 24 Shifting element
- 26 Protective tube
- 28 Transmission output
- 30 Bearing cap
- 32 Bore
- 34 Molding
- 36 Fixing bores
- 38 Hollow molding
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102018204910.6 | 2018-03-29 | ||
DE102018204910.6A DE102018204910A1 (en) | 2018-03-29 | 2018-03-29 | PTO arrangement |
PCT/EP2019/054777 WO2019185261A1 (en) | 2018-03-29 | 2019-02-27 | Auxiliary power take-off assembly |
Publications (2)
Publication Number | Publication Date |
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US20210023943A1 true US20210023943A1 (en) | 2021-01-28 |
US11813938B2 US11813938B2 (en) | 2023-11-14 |
Family
ID=65635672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/042,491 Active 2040-08-11 US11813938B2 (en) | 2018-03-29 | 2019-02-27 | Auxiliary power take-off assembly |
Country Status (3)
Country | Link |
---|---|
US (1) | US11813938B2 (en) |
DE (1) | DE102018204910A1 (en) |
WO (1) | WO2019185261A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11479117B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US11479116B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11267336B2 (en) | 2019-12-02 | 2022-03-08 | Eaton Cummins Automated Transmission Technologies, Llc | Transmission integrated power take off for commercial vehicle transmission |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817408A (en) * | 1954-03-30 | 1957-12-24 | Massey Harris Ferguson Inc | Power take-off drive for tractors |
JPS58128926A (en) * | 1982-01-29 | 1983-08-01 | Iseki & Co Ltd | Tractor hydraulic pump fixing device |
JPS5914521A (en) * | 1982-07-16 | 1984-01-25 | Iseki & Co Ltd | Oil supplying device for front working power taking-out gear mechanism in tractor |
US4610175A (en) * | 1984-02-06 | 1986-09-09 | Dana Corporation | Power takeoff assembly |
US5267477A (en) * | 1992-08-12 | 1993-12-07 | Kanzaki Kokyukoki Mfg., Co. Ltd. | Carrier with power take-off device |
US5535864A (en) * | 1992-08-27 | 1996-07-16 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission for a working vehicle |
US5645363A (en) * | 1994-04-15 | 1997-07-08 | Dana Corporation | Bearing cap and pump mounting flange for power take-off unit |
US5913547A (en) * | 1997-07-03 | 1999-06-22 | Muncie Power Products, Inc. | P.T.O. securement method |
US7163077B2 (en) * | 2003-01-30 | 2007-01-16 | Toshiyuki Hasegawa | Frame structure of a vehicle |
US20110162466A1 (en) * | 2009-10-07 | 2011-07-07 | Hydreco | Power take-off |
US8033298B2 (en) * | 2004-03-16 | 2011-10-11 | Yanmar Co., Ltd. | Hydraulic valve equipment of working vehicle |
US8393236B1 (en) * | 2009-06-26 | 2013-03-12 | Hydro-Gear Limited Partnership | Modular power distribution and drive system |
US8739905B1 (en) * | 2009-08-10 | 2014-06-03 | Hydro-Gear Limited Partnership | Drive assembly |
US9221336B1 (en) * | 2011-11-14 | 2015-12-29 | Hydro-Gear Limited Partnership | Integral power distribution assembly for engine |
US10948028B2 (en) * | 2019-04-11 | 2021-03-16 | Borgwarner Inc. | Driveline component having rotatable shaft with centrifugal valve mounted thereto |
US11479117B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US11479116B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US11607951B2 (en) * | 2020-03-05 | 2023-03-21 | Zf Friedrichshafen Ag | Power take-off device for a motor vehicle and motor vehicle drive train |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1037277B (en) * | 1957-04-11 | 1958-08-21 | Porsche Kg | Vehicle engine, especially for agricultural tractors |
US3406579A (en) * | 1966-10-03 | 1968-10-22 | Gen Motors Corp | Power transmission with power takeoff |
DE2656669B1 (en) | 1976-12-15 | 1978-03-09 | Zahnradfabrik Friedrichshafen | Powershift transmission with a hydrodynamic unit and a hydrodynamic retarder |
US4597301A (en) | 1984-03-30 | 1986-07-01 | Dana Corporation | Power takeoff speed control assembly |
DE10152859A1 (en) | 2001-10-25 | 2003-05-08 | Zahnradfabrik Friedrichshafen | Vehicle transmission with power take-off |
DE102005055795A1 (en) | 2005-11-21 | 2007-05-31 | Voith Turbo Gmbh & Co. Kg | Load transfer unit for auxiliary units of turbine has vibration damping device between input of load transfer unit and auxiliary drive side of auxiliary takeoff drive |
US7765884B2 (en) | 2007-09-27 | 2010-08-03 | Ford Global Technologies, Llc | Vehicle powertrain having live power take-off |
DE102007059366A1 (en) * | 2007-12-07 | 2009-02-12 | Voith Patent Gmbh | Drive train, particularly motor vehicle drive train, has rigid coupling between two sides operated above marginal torque, which is larger than reaction torque of power engine and smaller than maximum torque of prime mover |
US9290092B2 (en) * | 2013-06-11 | 2016-03-22 | GM Global Technology Operations LLC | Chain drive power take off for hydraulic pump |
US9457659B2 (en) | 2014-12-17 | 2016-10-04 | Gm Global Technology Operations, Llc | Transmission with integrated power take-off |
DE102015223604A1 (en) | 2015-11-27 | 2017-06-01 | Zf Friedrichshafen Ag | Planetary automatic transmission with alternative power take-off arrangement |
DE102016212209A1 (en) | 2016-07-05 | 2018-01-11 | Zf Friedrichshafen Ag | PTO arrangement |
-
2018
- 2018-03-29 DE DE102018204910.6A patent/DE102018204910A1/en active Pending
-
2019
- 2019-02-27 WO PCT/EP2019/054777 patent/WO2019185261A1/en active Application Filing
- 2019-02-27 US US17/042,491 patent/US11813938B2/en active Active
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817408A (en) * | 1954-03-30 | 1957-12-24 | Massey Harris Ferguson Inc | Power take-off drive for tractors |
JPS58128926A (en) * | 1982-01-29 | 1983-08-01 | Iseki & Co Ltd | Tractor hydraulic pump fixing device |
JPS5914521A (en) * | 1982-07-16 | 1984-01-25 | Iseki & Co Ltd | Oil supplying device for front working power taking-out gear mechanism in tractor |
US4610175A (en) * | 1984-02-06 | 1986-09-09 | Dana Corporation | Power takeoff assembly |
US5267477A (en) * | 1992-08-12 | 1993-12-07 | Kanzaki Kokyukoki Mfg., Co. Ltd. | Carrier with power take-off device |
US5535864A (en) * | 1992-08-27 | 1996-07-16 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission for a working vehicle |
US5645363A (en) * | 1994-04-15 | 1997-07-08 | Dana Corporation | Bearing cap and pump mounting flange for power take-off unit |
US5913547A (en) * | 1997-07-03 | 1999-06-22 | Muncie Power Products, Inc. | P.T.O. securement method |
US7163077B2 (en) * | 2003-01-30 | 2007-01-16 | Toshiyuki Hasegawa | Frame structure of a vehicle |
US8033298B2 (en) * | 2004-03-16 | 2011-10-11 | Yanmar Co., Ltd. | Hydraulic valve equipment of working vehicle |
US8393236B1 (en) * | 2009-06-26 | 2013-03-12 | Hydro-Gear Limited Partnership | Modular power distribution and drive system |
US8739905B1 (en) * | 2009-08-10 | 2014-06-03 | Hydro-Gear Limited Partnership | Drive assembly |
US20110162466A1 (en) * | 2009-10-07 | 2011-07-07 | Hydreco | Power take-off |
US9221336B1 (en) * | 2011-11-14 | 2015-12-29 | Hydro-Gear Limited Partnership | Integral power distribution assembly for engine |
US11479117B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US11479116B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US10948028B2 (en) * | 2019-04-11 | 2021-03-16 | Borgwarner Inc. | Driveline component having rotatable shaft with centrifugal valve mounted thereto |
US11607951B2 (en) * | 2020-03-05 | 2023-03-21 | Zf Friedrichshafen Ag | Power take-off device for a motor vehicle and motor vehicle drive train |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11479117B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
US11479116B2 (en) * | 2018-03-29 | 2022-10-25 | Zf Friedrichshafen Ag | Auxiliary power take-off assembly |
Also Published As
Publication number | Publication date |
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DE102018204910A1 (en) | 2019-10-02 |
US11813938B2 (en) | 2023-11-14 |
WO2019185261A1 (en) | 2019-10-03 |
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